8.0

Audio processing and functions
The Spectrum Analyzer
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NOTE
If you have selected more than one event and did not activate the “Process all
selected Events” option in the Output section, the dialog opens again after
processing, allowing you to make separate settings for the next event.
The Spectrum Analyzer
This function analyzes the selected audio, computes the average “spectrum” (level
distribution over the frequency range) and displays this as a two-dimensional graph,
with frequency on the x-axis and level on the y-axis.
PROCEDURE
1. Make an audio selection (a clip, an event or a range selection).
2. Select “Spectrum Analyzer” from the Audio menu.
A dialog with settings for the analysis appears.
The default values give good results in most situations, but you can adjust the settings
if you like:
• Size in Samples
The function divides the audio into “analysis blocks”, the size of which is set
here. The larger this value, the higher the frequency resolution of the resulting
spectrum.
• Size of Overlap
The overlap between each analysis block.
• Window used
Allows you to select which window type is used for the FFT (Fast Fourier
Transform, the mathematical method used for computing the spectrum).
• Normalized Values
When this is activated, the resulting level values are scaled, so that the highest
level is displayed as “1” (0
dB).